三亚废弃矿山植被自然恢复的研究初探  

Preliminary Study on Natural Vegetation Restoration of Abandoned Mines in Sanya

作　　者：文钦雷 卢瑜 林慨 徐金铎 Wen Qinlei;Lu Yu;Lin Kai;Xu Jinduo(Sanya Academy of Forestry,Sanya Hainan57200)

机构地区：[1]三亚市林业科学研究院,海南三亚572000

出　　处：《热带林业》2024年第4期109-113,共5页Tropical Forestry

基　　金：三亚市科技项目“三亚市废弃矿坑生态修复效果评估”。

摘　　要：选取三亚市9个自然恢复废弃矿山为对象,调查植被自然恢复下植物覆盖度和物种丰富度等,分析植被自然恢复下的物种组成及其分布差异。结果表明,各废弃矿山植被覆盖变化趋势为正向发展,乔木层林分郁闭度在0.25~0.80之间;各层次物种丰富度在3.67种~5.88种之间。乔木层物种重要值较高的有大叶相思、破布叶、银合欢等树种,不同废弃矿山的乔木树种分布存在一定差异。当前自然修复的废弃矿山植被覆绿效果较好,但受土壤、水分、恢复时间和立地条件的影响,植被演替结构尚未达到稳定性。Nine abandoned mines in Sanya were selected as the objects to investigate the vegetation coverage and species richness under natural vegetation restoration and to analyze the plant composition and distribution differences.The results showed the vegetation coverage development was positive,with the canopy density of the arbor layer between 0.25 and 0.80 and the species richness between 3.67 and 5.88.Species with higher important values in the tree layer were Acacia auriculiformis,Microcos paniculata,and Leucaena leucocephala,and there were differences in the distribution of tree species in different mines.At present,the effect of vegetation coverage by natural restoration in abandoned mines is great,however,due to the soil,water,restoration time,and site conditions,vegetation succession structure has not reached stability.

关 键 词：废弃矿山 自然恢复 植被覆盖率 重要值 

分 类 号：X171.4[环境科学与工程—环境科学]